About this Abstract |
| Meeting |
MS&T25: Materials Science & Technology
|
| Symposium
|
2D Materials: Synthesis, Properties, and Applications
|
| Presentation Title |
Multi-band luminescence from a rare earth-based two-dimensional material |
| Author(s) |
Michael A. Susner, Rahul Rao, Emmanuel Rowe, Ryan Siebenaller, Thuc Mai, Ruth Pachter, Deep Jariwala, Joshua Hendrickson |
| On-Site Speaker (Planned) |
Michael A. Susner |
| Abstract Scope |
Photoluminescence (PL) emission in two-dimensional (2D) materials is of great interest for nanophotonics applications. While excitonic emission has been observed in numerous 2D materials, tunable multi-band luminescence is rare. Here we present AgErP2Se6, a 2D material that exhibits bright, multi-band PL emission from Er3+ ions within the lattice. The emission bands cover a wide range (340 – 1550 nm), with ultra-narrow (as low as 0.5 nm at room temperature) emission peaks and room temperature lifetimes up to ~7 µs. The intensities of the PL emission bands from the single crystals depend strongly on temperature and pressure, enabling sensing over a wide temperature and pressure range. Furthermore, the PL persists in exfoliated flakes down to at least 10 nm thick and demonstrates thickness-dependent Purcell enhancement. This work establishes 2D AgErP2Se6 as a multi-band luminescent emitter and sensor, poised to enable integration into a number of optoelectronics and nanophotonics applications. |